Frame for battery-electrodes.



No. 722,946. PATENT-ED MAR. .17, 1903 H. OOTTRELL.

FRAME FOR BATTERY'ELBGTRODES. APPLICATION FILED SEPT. 13. 1902. I0MODEL.

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WITNESSES:

UNITED STATES PATENT OFFICE.

HERBERT COTTRELL, QF-NEWARK, NEW JERSEY.

FRAME FOR BATTERY-ELECTRODES.

SPECIFICATION forming part of Letters Patent No. 722,946, dated March1903- l T Application filed September 13, 1902. Serial No. 123,208- (llomodel.)

To all whom, it may concern:

Be it known that I, HERBERT COTTRELL, of the city of Newark, county ofEssex, State of New Jersey, have invented certain new and usefulImprovements in Frames for Battery- Electrodes, of which the followingis a specification.

The object of my invention is to provide a frame for holdingbattery-plates, such as may be made of material to be made active in thebattery, either molded or pressed in form or otherwise adapted to beheld in a frame.

A further object is to hold sets of positive" and negative platesseparate in a relatively fixed position and to provide for suspendingthe same in an electrolyte without a support at the bottom of the cell.To guard against short circuit between said plates if they should buckleor warp, separators of the ordinary form may be used,or non-conductivebuttons may be interposed between the plates. Such adjuncts, however,are not essential parts of my invention.

My improvement consists in first cutting a blank of sheet material toproduce a frame having openings cut out therefrom to correspond in formand dimensions to the electrode-plates to be held therein, and Istampcorrugations, both lateral and longitudinal, to give it strength,and to form suitable recesses to clip the said electrode plates holesare, pierced in a top extension thereof for use in clamping the partstogether and for suspending the same. I fold this sheet upon a centrallongitudinal line, so that the opposite holes pierced in the top and theopposite openings for the electrodes may each correspond. Theelectrode-plates may then be set in the. proper place and cemented orotherwise electrically connected with the frame, and rivets or othermeans of clamping the frame together may be employed. To group sets ofthe said 7 frames together and to hold them separate from each other, Iemploy non-conductive plates made with vertical grooves recessed thereinadapted to receive the edges of the said frames. Such plates are appliedto both the front and back edges of a set of the said frames and areheld firmly in place by any suitable means. Through the holes in the topextension of the frames a bolt is passed horizontally having thereon aneyebolt excorrugated portion of the frame.

tending vertically, also washers of dimensions to fill the space betweensaid frames. Nuts upon the extremities of said horizontal bolt are usedto clamp the set of frames and washers together in electrical contact.The vertical eyebolts extend upward through the cell-cover and alsothrough a conductive spanner which bridges across the top of the celland terminates in a threaded portion with lock-nuts, which serve to drawthe set of frames firmly to the cell-cover and form theconnecting-terminals.

In the accompanying drawings, which form part of this specification,Figure 1 shows perforated frame-plate flat. Fig. 2 is a view of Fig. 1on the line X X to show corrugations. Fig. 3 is a vertical view. Fig. 4is a plan of Fig. 3 on line X X. Fig. 5 is a top view.

In all of the views similar letters of reference refer to likeparts.

0. represents the b is the cir cular embossing, surrounding the holes inthe top of the frame, by which it may be suspended. c is the eyebolt; d,the spannerplate; 6, the lock-nuts, which are also the connectors. f isthe non-conductive grooved spacing-support. g is the electrode platesand frame. h is the cell-cover, and 'iis the horizontal clamping-bolt.

I wish it to be understood that 1 do not limit myself to the preciseform of the oblong opening in the frame which receives and holds theelectrode-plates g, for I could make the In Figs. 1 to 5, inclusive,

frame sash-like in form with numerous apertures to hold a correspondingnumber of electrode-plates without departing from my invention, nor do Ilimit myself to the precise form of'the spanner-plate d as shown.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is-

1. A holder for electrode-plates for reversible galvanic cells,comprising a frame of sheet material, doubled, to clip theelectrode-plates in its fold; and having a top extension perforated toreceive a bolt whereby theframe may be clamped, and from which it may besuspended substantially as shown and described and as and for thepurposes set forth.

2. In a holder for electrode-plates for reversible galvanic cells; thecombination of a doubled metallic sash, a lateral clamping- ICC bolt, avertical eyebolt, and a spanner-plate I separate in a fixed position inthe electrolyte; :o to supportthe said holder suspended, sub: 1substantially as shown and described, and as stantially as shown anddescribed, and as and and for the purposes set forth. for the purposesset forth. 'Signed this 11th day of September, 1902.

3. A reversible galvanic battery; comprising a set of sash-frames tocarry electrodes; 1 HERBERT COTTRELL' and non-conductivevertically-grooved plates Witnesses: adapted to be adjusted centrally tothe front HOWARD H. ECKERT, and back edges of said frames, to hold themi LOUIS A. SAYRE.

